A trailer for the season finale in Australia (due to air in New Zealand in a few weeks) has just been released and it reveals that "the biggest bombshell of the entire experiment" will play out.

It promises "twist after twist" and "the greatest grand finale week of all time."

And with claims that the show "is about to go out with one hell of a bang," we simply cannot wait.

WATCH: See the promo in the player below!

She's back...

The trailer shows Davina chucking back some wine, saying, "I just want s**t to hit the fan."

And so too do the team of experts, it seems. The trio decided that "there's only one way" for everyone to find out what really happened between Dean and Davina, so they air never seen before footage of the duo getting rather intimate.

And the group, not surprisingly, are shocked.

Bring on the drama!

The preview also shows that Dean is in love!

"I'm taking this very seriously," he tells Tracey. Sobbing, he adds, "I now know, that I love you."

We did not see that coming!

Dean is sobbing as he confesses his love for Tracey.

But the drama doesn't stop there.

"A backflip that will shock Australia" will also ensue.

It's unclear what to expect, but with the drama surrounding what really happened between Dean and Davina, could it mean that Tracey finally gives Dean the flick?

"Nothing can prepare you," the preview promises, "for the four best nights of television you will ever see."